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Distribution of Oceans and Continents

Madhya Pradesh Board · Class 11 · Geography

Quick revision notes for Distribution of Oceans and Continents — Madhya Pradesh Board Class 11 Geography. Key concepts, formulas, and definitions for last-minute revision.

70 questions80 flashcards5 concepts

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Key Topics to Revise

1

Continental Drift and Early Ideas

  • Abraham Ortelius first proposed in 1596 that continents were once joined.
  • Antonio Pellegrini drew a map showing the three continents together.
  • Alfred Wegener put forth the continental drift theory in 1912.
2

Evidence for Continental Drift

  • The coastlines of Africa and South America facing each other show a remarkable match.
  • Bullard produced a computer-generated map in 1964 showing the best fit of the Atlantic margin between Africa and South America.
  • The fit was found at the 1,000-fathom line.
3

Ocean Floor Relief and Sea Floor Spreading

  • The ocean floor has three major divisions: continental margins, deep-sea basins, and mid-ocean ridges.
  • Continental margins form the transition between continental shores and deep-sea basins.
  • Deep-oceanic trenches are important parts of continental margins.
4

Plate Tectonics and Plate Boundaries

  • McKenzie and Parker, along with Morgan, independently collected available ideas in 1967 and formulated Plate Tectonics.
  • The earth's lithosphere is divided into seven major plates and some minor plates.
  • A tectonic plate, or lithospheric plate, is a massive irregular slab of solid rock.

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Full Notes

Key Concepts

Alfred Wegener put forward the continentalPangaea means all earth and refersThe Atlantic coastlines of AfricaA belt of ancient rocksTillite is a sedimentary rock formed

Frequently Asked Questions

What are the important topics in Distribution of Oceans and Continents for Madhya Pradesh Board Class 11 Geography?
Distribution of Oceans and Continents covers several key topics that are frequently asked in Madhya Pradesh Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Distribution of Oceans and Continents — Madhya Pradesh Board Class 11 Geography?
Understand the core concepts first, then work through the 70 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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